South Metropolitan Crime Prevention officer Paul Sampson said the ease with which motorcycles and scooters could be carried away and the possibility of bored youths during the holiday season could be the reason behind the massive jump in the past few months.
The past 12 months saw numbers at their lowest in April 2012, with only seven motorcycle thefts and three scooter thefts.
However that number has steadily increased, peaking in January 2013 with 17 motorcycle thefts and 20 scooter thefts, a combined 16 more instances than the previous month that only recorded 10 motorcycle and 11 scooter thefts.
Sergeant Sampson said it was a trend police wanted to end.
‘This is a drain on police resources and the offenders often use the stolen bikes to assist in the commission of other offences such as burglary and assaults,’ he said.
‘The temptation is there and the offence is so easily committed,’ he said.
‘The only way this can be averted is for owners to take responsibility of their property.’